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<br />~ Table llo. 4 - Pur9atoire River <br />Date of Sampling: April 19, 1979 <br />Concentration in mg/1 <br />~ Above ldest <br />Parameter Portal Allen <br />I Boron, vg/1 80 <br />Calcium 33 <br />Iron <0.02 <br />~ Magnesium 5.5 <br />Manganese <0.01 <br />~ Potassium <br />I 1.0 <br />Silica, Si02 6.4 <br />Sodium 4.6 <br />Total Alkalinity 100 <br />Bicarbonate, HC03 122 <br />Chloride 1.9 <br />Specific Conductance <br />4mhos/cm 256 <br />fluoride 0.2 <br />• Hardness (EDTA) 95 <br />Noncarbonate Hardness 0 <br />Nitrate nitrogen 0.08 <br />pH value 8.1 <br />Total dissolved <br />solids @ 180°C 126 <br />Sulfate, S04 22 <br />Sodium absorption ratio 0.2 <br />•` <br />COMMERCIAL TESTING & ENGINEERING CO. <br />nab Ca or Wnerm ute0 <br />pr Ypyr Fr011CI~Or1 <br />